What does the published scientific research say about Bradyrhizobium lupinus?

Complete genome sequencing and phylogenetic analysis reclassified the H13-3 strain to genus Agrobacterium biovar I (genomic species G1), not Bradyrhizobium or Rhizobium. Its tripartite genome — a 2.82 Mb circular chromosome, a 2.15 Mb linear chromosome, and a 0.6 Mb accessory plasmid — lacks a tumor-inducing Ti-plasmid, confirming it as a non-virulent isolate. The strain is cited in the literature as a model system for studying flagellum structure, motility, and chemotaxis within the family Rhizobiaceae.